Basilosaurus
nbsp 0183 32 Basilosaurus has an anguilliform eel like body shape because of the elongation of the centra of the thoracic through anterior caudal vertebrae In life these vertebrae were filled with marrow and because of the enlarged size this made them buoyant Basilosaurus probably swam predominantly in two dimensions at the sea surface in contrast to the smaller Dorudon which was likely a diving…